There was a definitive study done that showed you can reduce malpractice mistakes by some insanely HUGE amount by changing 1 variable: Leave nurses alone while they're administering medicine. In the study they gave nurses "Do Not Distrub" vests where doctors (no matter how important or urgent) may not disturb the nurses while they are wearing them. Can't find the original study but here is a related piece on hospitals initiating the practice with related resources:

https://www.amsn.org/practice-resources/care-term-reference/...